Een Precies Vier bestaat uit 16 woorden, begrippen of namen, die moeten worden verdeeld in precies vier groepen van vier. Er is telkens maar één oplossing mogelijk. Welke woorden vormen een connectie?
Wie of wat staat er midden in het nieuws? Een actuele puzzel, die makkelijker is als je het nieuws een beetje volgt.
Als je wel zin hebt om te sudokuen, maar het liever bij een gridje van 5x5 houdt.
Je krijgt een paar cijfers cadeau, maar het grid van 9x9 moet foutloos ingevuld worden.
Fat Burns ☮ has added a photo to the pool:
Your comments and faves are greatly appreciated. Many thanks.
Square-tailed Kite
Scientific Name: Lophoictinia isura
Although it usually occurs singly, the Square-tailed Kite is sometimes seen soaring in pairs during the breeding season, and family groups of adults and one or two dependent young may be seen during post-fledging period. The Square-tailed Kite usually hunts by flying low over the treetops, occasionally plunging down through the foliage to snatch a bird or insect from among the leaves or twigs. The species often eats the nestlings of birds, and sometimes it will remove the entire nest to get at the young birds, and at other times may remove the tiny birds, one clutched tightly by the talons of each foot. They also catch adult birds by surprising them in the canopy of the forest.
Description: Often solitary, but can be seen in pairs when nesting. Squared-tailed Kites have a long, square tail with very long, upswept paddle-shaped wings and a large cream crescent at the base of their wing tips.
Similar Species: Immature Black Kite, Black-breasted Buzzard, and Red Goshawk
Distribution: Endemic to mainland Australia.
Habitat: The species mainly inhabits open eucalypt forests and woodlands, often where there is a broken canopy, but it also ranges into nearby open habitats. In southern Australia, Square-tailed Kites mainly inhabit open eucalypt forests and woodlands, often dominated by stringybarks, peppermints or box–ironbark eucalypts, as well as Woollybutt, Spotted Gum, Manna Gum, Messmate, River Red Gums, as well as other trees such as Angophora, cypress-pines and casuarinas. It also occurs along the edges of dense forest and along in road verges with remnant or planted trees, and in clearings within forest or in areas of regrowth, up to 4 years after the area has been logged. Other habitats which occasionally support Square-tailed Kites include mallee, heathland (mallee or coastal) and other low shrublands including saltbush plains, and also grasslands or open or cultivated farmland near remnant woodland.
Feeding: Searching for prey from the air, where they are highly agile at low levels, they mainly hunt in eucalypt open forest or woodland, and less often in low shrublands, heath, grassland or crops, and the margins between open and timbered country (forest–heath; woodland–heath; forest–open field; mallee–open paddocks; woodland edges; riparian timber; belts of trees in urban or semi-urban areas; and clearings in forests) are especially favoured. They specialise in hunting among trees, twisting between and below tree-tops, and they take most prey from the outer foliage of the canopy, but do not enter the canopy.
Breeding: Square-tailed Kites nest on horizontal branches in mature living trees, especially eucalypts, often near water, and they need extensive areas of forest or woodland surrounding or nearby.
Calls: Yelping, yeep, yeep, yeep. Also squealing ee ee ee ee
Minimum Size: 50cm
Maximum Size: 55cm
Average size: 53cm
Average weight: 568g
Breeding season: Aug - Dec
Incubation: 37 days
Nestling Period: 63 days
(Sources: www.birdsinbackyards.net/species/Lophoictinia-isura and www.birdlife.org.au/bird-profile/square-tailed-kite)
© Chris Burns 2026
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This image may not be copied, reproduced, distributed, republished, downloaded, displayed, posted or transmitted in any form or by any means, including electronic, mechanical, photocopying and recording without my written consent.
There’s new benchmark measuring AI’s ability to perform mathematical cryptanalysis. Anthropic’s frontier model actually found new attacks.
The benchmark: “CryptanalysisBench: Can LLMs do Cryptanalysis?” The idea is to benchmark the ability of LLMs to discover new mathematical cryptanalytic attacks against a series of historical algorithms.
Abstract: Cryptanalysis—the task of finding attacks against cryptographic schemes—its at the intersection of mathematical reasoning and cybersecurity, two areas where LLMs have advanced fastest. Cryptanalysis represents both a clean testbed for frontier reasoning (as practical attacks can be automatically verified) and a domain with unusually high stakes, since the primitives under study underpin our digital security. In this paper we ask whether LLMs can do cryptanalysis, and find that the answer is increasingly yes. We introduce CryptanalysisBench, 191 tasks across six families of cryptographic primitives (block ciphers, hash functions, etc.) drawn primarily from four NIST standardization competitions. Our benchmark consists of three tiers: (i) primitives with known practical breaks; (ii) primitives with no known practical break, evaluated both at full strength and as scaled-down variants; and (iii) a challenge set of production primitives at the frontier of cryptanalysis. Five frontier models (Claude Opus 4.8, Sonnet 5, Mythos 5, GPT-5.5, and the open-weights GLM-5.2) break 65%86% of Tier 1 schemes, 612 Tier-2 schemes at full strength, and 2461 across all scaled-down variants. Beyond deriving known results, models produce novel cryptanalysis, such as a key-recovery attack that exploits a design flaw in the SpoC AEAD and an error in KINDI’s published CCA-security proof, both to the best of our knowledge not previously known.
We release CryptanalysisBench as a tool to help track if (or when) AI cryptanalysis becomes a serious factor and as a scaffold for stress-testing candidate schemes before deployment. The attacks that the benchmark already surfaces are an early snapshot of a fast-moving frontier that may soon match, and in places exceed, the published state of the art.
Anthropic used the benchmark to test Mythos Preview, and found new vulnerabilities in Hawk and reduced-round AES.
Still early results, but this is definitely something to watch.
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A decade ago, when I was still speaking at conferences and heavily marketing myself, I’d often think of personal branding ideas. We’ve seen the trends. The business cards. The t-shirts. The stickers. The buttons. The socks! Can’t forget the socks. My logo is branded across not only my sites but my computers and my slide decks, too.
I also liked using colour to reinforce my brand. I’ve continued that tradition with green threading throughout the latest redesign. I even considering wearing green for all my conference talks. Thankfully, that ended up being a short-lived idea.
At one point in my career, I was getting interviewed for a number of podcasts and considered starting up my own podcast. One of the ideas that came out of preparing to start my own podcast was how to brand via audio. I liked the idea of doing chimes like the NBC chimes so that’s what I did:
It’s five dings in the pattern of how I spell out my last name: Ess Enn oh-OH Kay.
Had I implemented this, I had considered using it to intro my conference talks. I likely would’ve integrated it into the site somehow as well. Maybe clicking on the logo rings the chime as the letters of my name pop in sequence.
For now, I’ll simply document this little artifact of time.